Soil is considered to be acidic when the pH is measured to be lower than 7. The lower the number, the higher the level of acid in the soil. acre

Soil with a pH level lower than 7. Back to alphabetical list

Soil with a pH level below 7

Soil which contains no free lime and has a PH lower than 7.

Soil with a pH below 7

Any soil with a pH reading below 6.5 on a scale of 1-14; the lower the reading, the more acid the soil.

soil with a pH measure below 7. Most soils in the eastern third of the United States and Canada and along the West Coast are naturally acidic.

Soil with a pH below 7 on a pH scale of 0 to 14. The lower the pH, the more acid the soil. See pH.

                  A soil that has a high activity of hydrogen ions, which gives   the soil a pH value below 7 and produces a yellow, orange or                                         red reaction when in contact with universal indicator solution                                       (see pH).

 Soil having a pH of less than 7.

A soil material having a pH of less than 7.0. See also soil reaction.

Soil with a pH value less than 7.0.

A soil with a pH below the neutral point of 7.0. Soil acidity is determined by the concentration of hydrogen ions in solution. Turfgrasses generally prefer slightly acidic soils.

Any soil with a pH less than 7.

Soil with a pH below 7 on a pH scale of 0 to 14. The lower the pH, the more acid the soil. See pH.

Referring to a soil that has a pH below 7.0.  A neutral soil has a pH of 7.0.  As soil pH changes, so does the availability of many macro and micro plant nutrients in the soil.